Where to find Microsoft VisualStudio TestTools UnitTesting missing dll

Question

I am getting following error in my C  visual studio project      The type or namespace name  VisualStudio  does not exist in the namespace  Microsoft   are you missing an assembly reference     I also tried to find the microsoft dll file but couldn t get any reference   Am I searching the wrong DLL   using Microsoft VisualStudio TestTools UnitTesting    using Kya MsFx Services Swiper   namespace Kya MsFx Devices Swiper Test    TestClass  public class SwiperWindowTest        private SwiperWebServiceHost m SwiperWS   null           lt summary gt              start web service on a separate thread  so tests              can be executed withut blocking the application thread          lt  summary gt       ClassInitialize      public void SetupSwiperTests              m SwiperWS   SwiperWebServiceHost StartService                     lt summary gt          Stop service started during class initialize and kill the thread          lt  summary gt       ClassCleanup      public void CleanupSwiperTests             m SwiperWS Stop                     lt summary gt            simulate init  swipe  clear operations          lt  summary gt       TestMethod      public void TestSwiperService                 MessageBox Show  test

User · Answer

If you came here because your VSTS build job is failing with the above error message  Ensure that you are using at least version 2   of the nuget task to restore your packages

User · Answer

To resolve this issue  I had to do the following    Launch the Visual Studio Installer with administrative privileges If it prompts you to install updates to Visual Studio  do so before continuing When prompted  click the button to Modify the existing installation Click on the  Individual components  tab   header along the top Scroll down to the  Debugging and testing  section Check the box next to  Web performance and load testing tools  Click the Modify button on the bottom right corner of the dialog to install the missing DLLs   Once the DLLs are installed  you can add references to them using the method that Agent007 indicated in his answer

User · Answer

There is also a nice nuget package  It will pull the dll to your packages  folder  You will need to add the reference to the dll manually   NOTE  This package is not an official Microsoft package

User · Answer

Add a reference to  Microsoft VisualStudio QualityTools UnitTestFramework  NuGet packet and it should successfully build it

User · Answer

You have to add reference to Microsoft VisualStudio QualityTools UnitTestFramework dll   It can be found at C  Program Files Microsoft Visual Studio 10 0 Common7 IDE PublicAssemblies  directory  for VS2010 professional or above   NET Framework 4 0   or right click on your project and select  Add Reference     gt   NET

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I e  for Visual Studio 2013 I would reference this assembly      Microsoft VisualStudio Shell 14 0 dll   You can find it i e  here       C  Program Files  x86  Microsoft Visual Studio   12 0 Common7 IDE Extensions BugAid Software BugAid 1 0   and don t forget to implement      using Microsoft VisualStudio

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Simply Refer this URL and download and save required dll files   this location   C  Program Files  x86  Microsoft Visual Studio 10 0 Common7 IDE PublicAssemblies  URL is  https   github com NN--- vssdk2013 find master

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I got this problem after moving a project and deleting it s packages folder  Nuget was showning that MSTest TestAdapter and MSTest TestFramework v 1 3 2 was installed  The fix seemed to be to open VS as administrator and build After that I was able to re-open and build without having admin priviledge

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I know this is old  this is what came up in my Google search  I needed to reference these packages on NuGet

User · Answer

The DLL you re looking for that contains that namespace is  Microsoft VisualStudio QualityTools UnitTestFramework dll   Note that unit testing cannot be used in Visual Studio Express

User · Answer

If you are using Visual Studio 2017 Community  the location is   C  Program Files  x86  Microsoft Visual Studio 2017 Community Common7 IDE ReferenceAssemblies v2 0  The DLL you want is there   Microsoft VisualStudio QualityTools UnitTestFramework dll  Apparently it is located in the C  Program Files Microsoft Visual Studio 10 0 Common7 IDE PublicAssemblies  directory for Visual Studio 2010 Professional version  but take note that the 10 0 will change to correspond with the release year  i e  VS 2013 was version 12 0  VS 2015 was version 14 0  VS 2017 is 15 0    VS Express is not supported and would require installing the NUnit NuGet package  through the NuGet Package Manager  instead    You go to References  right-click  select Add Reference  Browse   Navigate to the path  then double-click the file   Then  you need a using statement at the top of your Unit Test class   using Microsoft VisualStudio TestTools UnitTesting

User · Answer

With Visual Studio 2019  running a  net core 3 1 project  you will need to install the latest test framework to resolve the error   Easiest way to accomplish this is by hovering the browser over a  Test  annotation  underlined in red  and select suggested fixes  The one needed is to  search for and install the latest test framework

[c#] Where to find "Microsoft.VisualStudio.TestTools.UnitTesting" missing dll?

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